Learn how to grow your own Oca with this video tutorial from Quickcrop with expert organic vegetable grower Klaus Laitenberger. Oca is a perennial herbaceous plant that overwinters as underground stem tubers.The plant was brought into cultivation in the central and southern Andes for its tubers, which are used as a root vegetable. Oca was introduced to Europe in 1830 as a competitor to the potato
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